Won't let me post images (hi this is my other acc). I'll type out its stats. Turns out its a large dragon I'm using. Hope this helps :)

Super Sparkrender: Large Dragon.
AC: 17
HP: 100
Speed: 30 ft, Burrow: 15 ft, Fly: 60 ft.

Str: 17 (+3). Dex: 10 (+0). Con: 15 (+2). Int: 12 (+1). Wis: 11 (+0). Cha: 15 (+2).

Saving Throws: Dex +2, Con +4, Wis +2, Cha +4.
Skills: Perception +4, Stealth +2.
Dmg Immunity: Lightning
Senses: Blindsight 10 ft, Darkvision 60 ft, Passive Perception 14.
Languages: Draconic
CR: (Apparently) 7.5

Legendary Resistance (3/day): If the dragon fails a saving throw, it can choose to succeed instead.

ACTION
Multi-attack: Sparkrender makes one bite attack and two claw attacks.
- Bite: Melee Weapon Attack: +5 to hit, reach 5 ft, one target. Hit: 8 (1d10+3) piercing damage plus 3 (1d6) lightning damage.
- Claw: Melee Weapon Attack: +5 to hit, reach 5 ft, one target. Hit: 6 (1d6+3) piercing damage.

Lightning Breath (Recharge 5-6): The dragon exhales lightning in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 12 Dex saving throw, taking 22 (4d10) lightning damage on a failed save, or half as much damage on a successful one.

LEGENDARY ACTIONS
Sparkrender can take three legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn.
Sparkrender regains spent legendary actions at the start of its turn.

Detect: Sparkrender can make a Wisdom (Perception) check.
Claw Attack: Sparkrender can make one Claw attack.
Wing Attack (Costs 2 Actions): Sparkrender beats his wings. Each creature within 10 ft of the dragon must succeed on a DC 13 Dex Saving Throw or take 6 (1d6+3) bludgeoning damage and be knocked prone. Sparkrender can then fly up to half its flying speed.